Results 111 to 120 of about 217,811 (220)

Roadmap on specialty optical fibers

open access: yesJPhys Photonics
Optical fibers, long an enabling technology for telecommunications, are proving to play a central role in a growing number of modern applications, starting from high speed broad band internet to medical surgery and entering across the entire spectrum of ...
Mário F S Ferreira   +22 more
doaj   +1 more source

Horizontal semiconcavity for the square of Carnot-Carathéodory distance on step 2 Carnot groups and applications to Hamilton-Jacobi equations [PDF]

open access: yesarXiv
We show that the square of Carnot-Carath\'eodory distance from the origin, in step 2 Carnot groups, enjoys the horizontal semiconcavity (h-semiconcavity) everywhere in the group including the origin. We first give a proof in the case of ideal Carnot groups, based on the simple group structure as well as estimates for the Euclidean semiconcavity.
arxiv  

Exceptional sets for self-similar fractals in Carnot groups [PDF]

open access: green, 2010
Zoltán M. Balogh   +3 more
openalex   +1 more source

A note on lifting of Carnot groups

open access: bronze, 2005
Andrea Bonfiglioli, Francesco Uguzzoni
openalex   +2 more sources

Solving singular evolution problems in sub-Riemannian groups via deterministic games

open access: yesElectronic Journal of Differential Equations, 2021
Pablo Ochoa, Julio Alejo Ruiz
doaj  

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